Agricultural machine



S p 9, 1941- l. A. HARVEY AGRICULTURAL MACHINE Filed Sept. 17, 1940 3 Sheets-She et 1 Inventor A tiorrqe y Sept. 9, 1941- l. A. HARVEY 2,255,562

AGRICULTURAL MACHINE Filed Sept. 17, 1940 15 Sheets-Sheet 2 Inventor A ttorney; I

p 9, 1941- l. A. HARVEY AGRICULTURAL MACHINE Filed Sept. 17, 1940 3 Sheets-Sheet 5 0 t n e v [rt i)? 4. Harvey By 2mm Allomeg Patented Sept. 9, 1941 UNITED STATES PATENT OFFICE AGRICULTURAL MACHINE Irvin A. Harvey, Harvey, Iowa Application September 1'7, 1940, Serial No. 357,170

4 Claims.

This invention appertains to new and useful improvements in farm machinery and more particularly to a damming appliance.

The principal object of the present invention is to provide an appliance for farm machinery operative to prevent soil erosion by building dams in furrows to the end that water from rain or artificial irrigation can be caught and held against draining to a low point on acreage.

Other objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:

Figure 1 represents a fragmentary top plan view showing the appliance attached to a tractor.

Figure 2 represents a side elevational View of the structure shown in Figure 1.

Figure 3 is a sectional view taken substantially on a line 33 of Figure 1.

Figure 4 is a fragmentary rear elevational view of one of the damming units.

Figure 5 is a fragmentary perspective view of the plow bar.

Figure 6 is a plan view of one of the cupped blades.

Figure 7 is a section on the line 11 of Figure 1.

Figure 8 is a fragmentary perspective view of the carrier bar for the damming units.

Figure 9 is a plan view of a flat blade.

Figure 10 is a plan view of a bifurcated blade.

Referring to the drawings, wherein like numerals designate like parts, it can be seen that numeral 5 generally refers to a farm tractor which is provided at its intermediate portion with a bar 6 passing under the chassis and suitably secured thereto and having the upstanding end portion 1 to which the leg portions 8 of a U-shaped lift frame are pivotally secured as at 9. The rear portion of this frame includes a transverse bar on which the cultivator shovels H are mounted as is clearly shown in Figures 1 and 2. The shaft 9 which carries the U-shaped frame has upstanding arms l2 connected by rods l3 to hand levers l4 which are provided with suitable detent means whereby the same can be held in proper position maintaining the cultivator elements in the proper ground relation.

Numeral l5 denotes a bar which serves as a carrier bar for the damming units generally referred to by numeral l6. Each unit consists of a shaft 11 to which is secured a plurality of dished or cupped substantially round blades [8. These blades have straight edge portions l9 which are disposed tangentially against the shaft l1 and secured thereto by screws or the like 20. Brace members 2| are disposed between the blades 18, as suggested in Figure 4 and suitably riveted thereto as at 22.

The shaft I1 is freely rotatable in bearings 23 at the lower ends of arcuate shaped arms 24, the upper ends of which are provided with square clamps 25 for engaging the square bar l5. Of course, if desired, the blades l8 may be fiat as suggested by the blades 26 in Figure 9, or the blades may be as suggested in Figure 10 and denoted by numeral 1 wherein the blade is bifurcated, the sam having the cut-away portion 28 so as to leave a ridge for the front wheels of the tractor to ride when com or other crops are being shucked.

On the damming unit carrying bar I5 are U-shaped brackets 29 in which the barrels 30 of the cultivator bar I 0 are disposed and pins 3| are disposed through the ends of the brackets 29 and barrels 30 to hingedly connect the damming bar l5 to the cultivator bar ID.

The barrels 30 are located on plates 33 which are held against the cultivator bar II) by U-clamps 34.

' As can be seen clearly in Figure 2, upstanding arms 35 are provided on the damming bar l5 and between the upper ends of these arms 35 and the cultivating lifting levers 36 are chains 31. Obviously, when the levers 36 are moved forwardly to lift the cultivator, the damming units will also be elevated.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new 1s:

1. A damming attachment for cultivators comprising a carrier bar, a pair of arms depending from the bar, a shaft freely rotatable on the arms, laterally disposed blades, means for securing certain edge portions of the blades to the shaft and brace means between the blades.

2. A damming attachment for cultivators comprising a carrier bar, a pair of arms depending y secured at certain of their edges directly to the shaft, the ground engaging edge portions of the blades being formed with ridge forming cut out portions. V.

' 4. A damming attachment for cultivators comprising a carrier bar, a pair of arms depending from the bar, a shaft freely rotatable on the arms, laterally disposed blades, said blades being secured at certain of their edges directly to the shaft, the ground engaging edge portions of the blades being formed with ridge forming out out I portions, said blades being substantially of semicircular shape with the curved edge portions thereof forming the ground engaging edges of the blades.

IRVIN A. HARVEY. 

